Not all "All-in-one" boards are the same

[ToSGod]

So I started collecting up parts to build a GBZ. While searching the internet I found this All in one board.
https://www.ebay.com/itm/361672717529

Well I just received it and I notice it's a blank board with no chips on the back. I've bought most of the items for this guide
http://www.sudomod.com/game-boy-zero-cu ... de-part-1/

Is there an easy way to make it work still? Or should I just buy a different board.

[Abunchahicks]

That's a common ground button pcb. I'm pretty sure it is based on an early Helder design. I don't see where it is sold as an AIO board. These boards have been used a lot to build GBZ's with success, you just have to use other parts that are already installed onto AIO's.

[ICMF]

Yes, you can make it work, you'll just need to follow this guide (more or less), just use your eBay PCB instead of modifying the original Game Boy PCB. http://www.sudomod.com/game-boy-zero-guide-part-1/

So you'll need to source either a USB sound card or or the parts to make a PWM filter, an amplifier, a microcontroller (or use GPIO) for controls, and a USB hub if you're using more than one USB device (if you use PWM audio and GPIO controls, you don't need a USB hub).

You can use a Teensy (per wermy's build), or a Leonardo, or a Pro Micro, or any other ATmega32U4 microcontroller:
https://www.ebay.com/sch/i.html?_sacat= ... 2u4&_frs=1
Adafruit's Class D amp is a popular choice, but you can get cheaper options from Asia:
https://goo.gl/WU5bH6
And sound cards are cheap and easy to find:
https://www.ebay.com/sch/i.html?_from=R ... rd&_sop=15
USB hubs are trickier, as not all hubs are compatible with the Raspberry Pi. Check the wiki for suggestions, or just buy a few and experiment.


Or, write off the $5 board and source an actual AIO.